Update Readme

Author: knightcrawler25

README.md

@@ -1,23 +1,22 @@
 
 GLSL-PathTracer
 ==========
-A physically based Path Tracer that runs in a GLSL Fragment shader.
+A physically based path tracer that runs in a GLSL fragment shader.
 
-![Stormtrooper](./screenshots/stormtrooper.png)
-
-![Hyperion](./screenshots/hyperion.png)
+![Mustang](./screenshots/Mustang.png)
 
 ![Panther](./screenshots/panther.png)
-Recreation of a scene from [Greyscalegorilla](https://twitter.com/GSG3D). Render time: 2 minutes on a GTX 750 Ti. 3 bounces
+
+![Stormtrooper](./screenshots/stormtrooper.png)
 
 ![Crown](./screenshots/crown.png)
 
 Features
 --------
-- Unidirectional PathTracer
+- Unidirectional path tracer
 - RadeonRays for building BVHs (Traversal is performed in a shader)
-- Metallic-Roughness Material Model
-- Texture Mapping (Albedo, Metallic, Roughness, Normal maps)
+- Disney BSDF
+- Texture Mapping (Albedo, Metallic-Roughness, Normal)
 - Spherical and Rectangular Area Lights
 - IBL with importance sampling
 - Progressive + Tiled Rendering (Reduces GPU usage and timeout when depth/scene complexity is high)
@@ -31,16 +30,9 @@ Sample Scenes
 A couple of sample scenes are provided in the repository. Additional scenes can be downloaded from here:
 https://drive.google.com/file/d/1UFMMoVb5uB7WIvCeHOfQ2dCQSxNMXluB/view
 
-TODO
+Gallery
 --------
-- ~~IBL importance sampling~~
-- ~~Emissive geometry~~
-- ~~Two-level BVH for instances and transforms~~
-- Support for different texture sizes
-- Performance improvements
-- Support for rendering out animation sequences
-
-Additional Screenshots
+![Hyperion](./screenshots/hyperion.png)
 --------
 ![Ajax](./screenshots/ajax_materials.png)
 --------
@@ -59,9 +51,8 @@ Additional Screenshots
 References/Credits
 --------
 - A huge shout-out to Cedric Guillemet (https://github.com/CedricGuillemet) for cleaning up the code, adding the UI, integrating ImGuizmo, cmake and quite a lot of fixes.
-- Ray Tracing in One Weekend (https://github.com/petershirley/raytracinginoneweekend) Peter Shirley's excellent book introductory book on raytracing which helped me get started on this project
-- Mitsuba Renderer (https://github.com/mitsuba-renderer/mitsuba) Main reference for validation of the code.
 - Tinsel Renderer (https://github.com/mmacklin/tinsel) A really amazing renderer which has several features. A modified version of the scene description & loader are taken from here. Reference for MIS, light sampling
-- Sam Lapere's path tracing tutorial ((https://github.com/straaljager/GPU-path-tracing-tutorial-4) Source for the Nvidia's SBVH used here. Traversal isn't the same as this code though. No Woop triangles either
-- Erich Loftis's THREE.js PathTracer (https://github.com/erichlof/THREE.js-PathTracing-Renderer) Several amazing webgl examples including bidirectional path tracing all running in a web browser.
-- Optix Advanced Samples, especially OptiX Introduction Samples (https://github.com/nvpro-samples/optix_advanced_samples/tree/master/src/optixIntroduction) Source for several tutorials
+- Ray Tracing in One Weekend (https://github.com/petershirley/raytracinginoneweekend) Peter Shirley's excellent book introductory book on raytracing which helped me get started on this project
+- Mitsuba Renderer (https://github.com/mitsuba-renderer/mitsuba) Reference for validation of the code.
+- Erich Loftis's THREE.js PathTracer (https://github.com/erichlof/THREE.js-PathTracing-Renderer) Several amazing webgl examples including bidirectional path tracing; all running in a web browser.
+- OptiX Introduction Samples (https://github.com/nvpro-samples/optix_advanced_samples/tree/master/src/optixIntroduction)